this derivation will be built:
  /nix/store/x1kmqbfr8ab2zypkxqnmmd0j5knxzvg3-treefmt-check.drv
building '/nix/store/x1kmqbfr8ab2zypkxqnmmd0j5knxzvg3-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2051 files
treefmt-check> emitted 554 files for processing
treefmt-check> formatted 554 files (0 changed) in 3.85s

upload niks3: ok